WO1997011343A1 - Procede de determination de la charge axiale sur un element de forme allongee - Google Patents

Procede de determination de la charge axiale sur un element de forme allongee Download PDF

Info

Publication number
WO1997011343A1
WO1997011343A1 PCT/SE1996/001173 SE9601173W WO9711343A1 WO 1997011343 A1 WO1997011343 A1 WO 1997011343A1 SE 9601173 W SE9601173 W SE 9601173W WO 9711343 A1 WO9711343 A1 WO 9711343A1
Authority
WO
WIPO (PCT)
Prior art keywords
flight
elongate member
waves
transverse
time
Prior art date
Application number
PCT/SE1996/001173
Other languages
English (en)
Inventor
Tobias Axel Andersson
Original Assignee
Atlas Copco Controls Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco Controls Ab filed Critical Atlas Copco Controls Ab
Priority to DE69624929T priority Critical patent/DE69624929T2/de
Priority to EP96932120A priority patent/EP0852003B1/fr
Priority to JP51265197A priority patent/JP4088342B2/ja
Priority to US09/043,595 priority patent/US6116094A/en
Publication of WO1997011343A1 publication Critical patent/WO1997011343A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
    • G01L5/246—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/25—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
    • G01L1/255—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons using acoustic waves, or acoustic emission
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/227—Details, e.g. general constructional or apparatus details related to high pressure, tension or stress conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/32—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise
    • G01N29/323—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise compensating for pressure or tension variations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/32—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise
    • G01N29/326—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise compensating for temperature variations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/011—Velocity or travel time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02827—Elastic parameters, strength or force
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2691—Bolts, screws, heads

Definitions

  • This invention relates to a method for determining the axial load on an elongate member by means of ultrasonic waves.
  • the invention concerns a load determining method in which longitudinally as well as transversely directed ultrasonic waves are introduced at one end of an elongate member and the time of flight for these waves is individually measured.
  • a problem concerned with the above technique is that the time of flight varies with changing temperature in the object being inspected.
  • the time of flight varies due to the fact that the propagation speed and the length of the object vary with the temperature. This results in an undesireable temperature related deviation in the
  • the invention comprises a method for determining the actual load on an elongate member by measuring during a first, preliminary zero-load inspection stage the time of flight for longitudinal and transverse ultrasonic waves introduced into the elongate member for determining the zero-load length of the elongate member by measuring the time of flight (TOF) for both types of waves measuring during a second inspection stage the time of flight (TOF) for both type of waves under the actual load and
  • the transverse and longitudinal waves are introduced into the elongate member by means of an ultrasonic transducer of the type which is permanently attached to an end surface of the elongate member.
  • an ultrasonic transducer of the type which is permanently attached to an end surface of the elongate member.
  • the next step is to calculate the axial load on the screw using the length and the TOF data. As we know the original length of the screw we can make a new
  • the difference in TOF from a zero-load measurement at T can be divided into a load induced change and a
  • the method according to the invention is suitable for but not limited to screw tightening applications. It may also be useful in:
  • the described method may be use to control the power wrench during the tightening process.
  • the ultrasonic transducer used for introducing the transverse and longitudinal waves in the screw is connected to an electronic operation control unit associated with the screw tightening tool.
  • the method may be used for inspection of the prevailing load in previously tightened screw joints.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Toxicology (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

L'invention concerne un procédé relatif à la détermination de la charge axiale sur un élément de forme allongée, qui consiste à mesurer les écarts entre les temps de passage transversal et longitudinal des ultrasons dans l'élément allongé en question en charge nulle et à la température correspondant à cet état, d'une part, et les temps de passage transversal et longitudinal de ces ultrasons dans l'élément allongé à l'état de charge effective, d'autre part. Ledit procédé consiste ensuite à calculer à partir de ces écarts la charge effective sur l'élément allongé, compte-tenu de l'influence de tout écart de température dans l'élément allongé entre la mesure du temps de passage à l'état de charge nulle et la mesure du même temps en charge effective.
PCT/SE1996/001173 1995-09-22 1996-09-23 Procede de determination de la charge axiale sur un element de forme allongee WO1997011343A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69624929T DE69624929T2 (de) 1995-09-22 1996-09-23 Verfahren zur bestimmung der axialen belastung in einem länglichen element
EP96932120A EP0852003B1 (fr) 1995-09-22 1996-09-23 Procede de determination de la charge axiale sur un element de forme allongee
JP51265197A JP4088342B2 (ja) 1995-09-22 1996-09-23 細長い部材の軸線方向荷重を決定する方法
US09/043,595 US6116094A (en) 1995-09-22 1996-09-23 Method for determining the axial load on an elongated member

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9503289A SE507466C2 (sv) 1995-09-22 1995-09-22 Metod för bestämning av axialkraften i en långsträckt kropp
SE9503289-2 1995-09-22

Publications (1)

Publication Number Publication Date
WO1997011343A1 true WO1997011343A1 (fr) 1997-03-27

Family

ID=20399564

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/001173 WO1997011343A1 (fr) 1995-09-22 1996-09-23 Procede de determination de la charge axiale sur un element de forme allongee

Country Status (6)

Country Link
US (1) US6116094A (fr)
EP (1) EP0852003B1 (fr)
JP (1) JP4088342B2 (fr)
DE (1) DE69624929T2 (fr)
SE (1) SE507466C2 (fr)
WO (1) WO1997011343A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103802A1 (fr) * 1999-11-29 2001-05-30 Freyssinet International Stup Procédé pour mesurer par ultrasons la tension résiduelle d'une barre de précontrainte
WO2022257409A1 (fr) * 2021-06-07 2022-12-15 航天精工股份有限公司 Procédé de mesure de charge d'un boulon à l'aide d'ultrasons
US11579121B2 (en) * 2018-12-04 2023-02-14 Intellifast Gmbh Method and device for determining the prestress force of a connection component

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7156595B2 (en) * 2001-11-16 2007-01-02 Clarke Ronald C Load indicating fastener insert
US8578778B2 (en) * 2009-10-15 2013-11-12 The Boeing Company Ultrasonic method to verify the interference fit of fasteners
KR102038732B1 (ko) * 2012-12-18 2019-10-30 아틀라스 콥코 인더스트리얼 테크니크 에이비 초음파 측정에 의해 볼트 내의 클램프력을 평가하기 위한 방법 및 장치
US11619132B2 (en) * 2016-08-16 2023-04-04 National Research Council Of Canada Methods and systems for ultrasonic rock bolt condition monitoring
CN109946379B (zh) * 2019-04-01 2020-02-18 大连理工大学 一种单向应力的电磁超声检测方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975948A (en) * 1974-10-11 1976-08-24 Toyota Jidosha Kogyo Kabushiki Kaisha Method of measuring axial force on a body utilizing two vibration modes of ultrasonic waves
US4602511A (en) * 1985-06-20 1986-07-29 J. A. Green Company Method for measuring fastener stress utilizing longitudinal and transverse ultrasonic wave time-of-flight
US4846001A (en) * 1987-09-11 1989-07-11 Sps Technologies, Inc. Ultrasonic load indicating member
WO1992019983A1 (fr) * 1991-05-02 1992-11-12 University Of Manchester Institute Of Science And Technology Appareil de mesure ultrasonique
EP0589271A1 (fr) * 1992-09-19 1994-03-30 Robert Bosch Gmbh Procédé et dispositif pour le serrage d'un vis contrôlé par ultrason

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5205176A (en) * 1990-08-27 1993-04-27 Ultrafast, Inc. Ultrasonic load cell with transducer
AU5312296A (en) * 1995-03-14 1996-10-02 Profile Technologies, Inc. Reflectometry methods for insulated pipes
US5625146A (en) * 1995-12-18 1997-04-29 The United States Of America As Represented By The Secretary Of The Navy Method and system for determining axial modulus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975948A (en) * 1974-10-11 1976-08-24 Toyota Jidosha Kogyo Kabushiki Kaisha Method of measuring axial force on a body utilizing two vibration modes of ultrasonic waves
US4602511A (en) * 1985-06-20 1986-07-29 J. A. Green Company Method for measuring fastener stress utilizing longitudinal and transverse ultrasonic wave time-of-flight
US4846001A (en) * 1987-09-11 1989-07-11 Sps Technologies, Inc. Ultrasonic load indicating member
WO1992019983A1 (fr) * 1991-05-02 1992-11-12 University Of Manchester Institute Of Science And Technology Appareil de mesure ultrasonique
EP0589271A1 (fr) * 1992-09-19 1994-03-30 Robert Bosch Gmbh Procédé et dispositif pour le serrage d'un vis contrôlé par ultrason

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1103802A1 (fr) * 1999-11-29 2001-05-30 Freyssinet International Stup Procédé pour mesurer par ultrasons la tension résiduelle d'une barre de précontrainte
FR2801670A1 (fr) * 1999-11-29 2001-06-01 Freyssinet Intertional Stup Procede pour mesurer par ultrason la tension residuelle d'une barre de precontrainte
TR200003519A3 (tr) * 1999-11-29 2001-06-21 Freyssinet International (Stup) Ön-stres yüklenmis bir çubugun artik gerilmesinin ultrason ile ölçülmesi için yöntem
TR200003519A2 (tr) * 1999-11-29 2001-06-21 Freyssinet International (Stup) Ön-stres yüklenmiş bir çubuğun artık gerilmesinin ultrason ile ölçülmesi için yöntem
US6327912B2 (en) 1999-11-29 2001-12-11 Freyssinet International (Stup) Method for measuring by ultra-sound the residual tension of a pre-stressed bar
SG90202A1 (en) * 1999-11-29 2002-07-23 Freyssinet Int Stup Method for measuring by ultra-sound the residual tension of a pre-stressed bar
AU771417B2 (en) * 1999-11-29 2004-03-18 Freyssinet International (Stup) Method for measuring by ultra-sound the residual tension of pre-stressed bar
US11579121B2 (en) * 2018-12-04 2023-02-14 Intellifast Gmbh Method and device for determining the prestress force of a connection component
WO2022257409A1 (fr) * 2021-06-07 2022-12-15 航天精工股份有限公司 Procédé de mesure de charge d'un boulon à l'aide d'ultrasons

Also Published As

Publication number Publication date
EP0852003B1 (fr) 2002-11-20
SE507466C2 (sv) 1998-06-08
EP0852003A1 (fr) 1998-07-08
SE9503289D0 (sv) 1995-09-22
SE9503289L (sv) 1997-03-23
JPH11512532A (ja) 1999-10-26
DE69624929T2 (de) 2003-10-09
JP4088342B2 (ja) 2008-05-21
US6116094A (en) 2000-09-12
DE69624929D1 (de) 2003-01-02

Similar Documents

Publication Publication Date Title
EP0381791B1 (fr) Membre ultrasonique pour l'indication de charge, appareil et méthode
Butler et al. Strength of fillet welds as a function of direction of load
Machin et al. Mean stress dependence of the thermoelastic constant
Alter et al. Effect of strain rate on the propagation of a plastic strain pulse along a lead bar
EP0852003B1 (fr) Procede de determination de la charge axiale sur un element de forme allongee
CN111693190A (zh) 一种基于超声波的螺栓轴向应力测量装置及方法
JP3689636B2 (ja) 予め応力が加えられた棒材の残留応力を測定するための方法
CN113295318A (zh) 一种利用超声测量螺栓载荷的方法
US4756194A (en) Method and system for controlling cracks in loaded structures
CN212645940U (zh) 一种基于超声波的螺栓轴向应力测量装置
RU2099698C1 (ru) Ультразвуковой способ измерения характеристик напряженно-деформированного состояния болтовых и шпилечных соединений
CN117077441B (zh) 一种螺栓轴向应力双波计算方法
Shatil et al. High strain biaxial fatigue of a structural steel
Brown et al. A biaxial fatigue machine for elevated temperature testing
Jurčius et al. Influence of vibratory stress relief on residual stresses in bridge structural members weldments
Sarzosa et al. Experimental validation of relationship between fracture parameters J and CTOD for SE (B) and SE (T) specimens during ductile crack growth
Winstone Influence of prestress on the yield surface of the cast nickel superalloy Mar-M002 at elevated temperature
Kumar et al. Measurement of the residual stress in hot rolled strip using strain gauge method
RU2107288C1 (ru) Ультразвуковой способ измерения механических характеристик напряженно-деформированного состояния материала деталей конструкций
English et al. J–Q characterized stress fields of surface-cracked metallic liners–II. Composite overwrapped pressure vessels
RU2112968C1 (ru) Ультразвуковой способ определения напряженно-деформированного состояния эксплуатируемых болтовых соединений
Fan Measurement of residual stresses using fracture mechanics weight functions
Liu et al. Pretightening stress measurement method of aero-engine fastening components based on acoustic time difference separation of the coupling layers
RU2107907C1 (ru) Ультразвуковой способ измерения механических напряжений при затяжке болтовых соединений
Palazotto et al. A finite-element investigation of viscoplastic-induced closure of short cracks at high temperatures

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1996932120

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 09043595

Country of ref document: US

ENP Entry into the national phase

Ref country code: JP

Ref document number: 1997 512651

Kind code of ref document: A

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 1996932120

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1996932120

Country of ref document: EP